Benjamin g



(No Model.)

B. G. CASLER. ADJUSTABLE BRACKET FOR DISPLAY FIXTURES.

Patented June 80, 1896.

UNITED STATES PATENT OFFICE.

BENJAMIN G. CASLER, OF CLEVELAND, OHIO, ASSIGNOR TO THE CASLER- ALTONCOMPANY,

OF SAME PLACE.

SPECIFICATION forming part of Letters Patent No. 562,887, dated June 30,1896.

Application filed September 21, 1894. $erial No. 523,746. (No model.)

To aZZ whom it may concern.-

Be it known that I, BENJAMIN G. CASLER, a citizen of the United States,residing at Cleveland, in the county of Cuyahoga and State of Ohio, haveinvented certain new and useful Improvements in Adjustable Brackets forDisplay-Fixtures; and I hereby declare the following to be a full,clear, and exact description of the same, reference being had to the Maccompanying drawings, wherein Figure 1 is an elevation of an uprightand three adjustable bracket-arms, two of said arms arranged as a doubleor front and rear bracketarm and the third as a single bracket- I 5 arm.Fig. 2 is an enlarged detail View of that portion of the bracket-arm andclamp embodying the invention. Fig. 3 is a top plan view of what isshown in side elevation, Fig. 2; and Fig. 4 is a bottom or inverted planview of the same.

Like symbols refer to like parts wherever they occur.

My invention relates to the construction of the adjustable bracket-armsof display-fixtures for window-trimmers use, and has for its object toobtain a simple, symmetrical, and strong bracket-arm, which may withoutchange be used as a single bracket-arm, or in duplicate to form a doublebracket-arm, and may be adjusted to take up the slack or wear of theratchet mechanism, or to any desired fractional adjustment between theratchetspaces.

The common construction, or, indeed, so far as I am aware, the almostuniversal construction, of bracket-arms for display-fixtures embracesthe well-known divided or sectional sleeve-clamp to clamp the upright,and on which the arm is pivoted, and the pawl-andratchet mechanism forthe angular adjustment of the arm. As a result, a special and differentform of sleeve or clamp is required for a double arm, and the angularadjustment is step by step, or, in other words, must correspond to thecharacter of the ratchet, whether the same be coarse or fine, and iffine, then the strength and stability of the arm i less and its lifeshortened.

To obtain a progressive and continuous an 50 gular adjustment of thepivoted arm, Icombine with the ratchet-andmwl mechanism or itsequivalent, whereby said angular adj ustment of the arm is obtained,means for progressively and continuously advancing or re tracting thepivot of the pawl or dog, which, or its equivalent, embodies the mainfeature of my invention.

There are other, minor, points of invention embodied in particularcombinations of elements, and in particular features of construction,all as willhereinafter more fully appear.

I will now proceed to describe my invention more fully, so that othersskilled in the art to which it appertains may apply the same.

In the drawings, Aindicates the arm of the bracket, which in the presentinstance is the usual notched arm with a series of undercut notches a toretain the shelf-rods, (not shown,) whether the arm be above or belowthe horizontal line of its pivot; bntthe particular form of the arm A isimmaterial, as in itself it embodies no feature of the presentinvention.

B indicates the clamp for securing the arm A to the upright C, and in oron said clamp the arm A is pivoted, as at a. That portion 7 5 of clamp Bon which the arm A is pivoted is preferably slotted (see Figs. 3 and 4?)to receive the pivoted end of the arm A, and concentric with the pivotalpoint ct is provided with a ratchet or ratchets l, with which a dog Soor pawl D, mounted on the arm, engages to eiiiect the angular adjustmentof said arm A. That portion of clamp B which engages the upright C is inthe form of a half-sleeve (or less) hearing, as at 2, and projectingfrom the 8 5 clamp B is a threaded bolt or post 3, on which moves athumb or binding nut 4:, which nut retains a clamping-washer 5, and saidwasher may, if desired, and preferably is, swiveled on the nut a, so asto be detachable jointly with nut 4. The threaded post 3 and bindingnut4: are so located with relation to the halfsleeve bearing 2 that whentwo such clamps are arranged in the same plane (see dotted and fullline, Fig. 4L) the half-sleeve bearings 9 5 are interposed between theupright C and the binding-nuts 4.

Mounted on arm A, preferably on the under side thereof, is a pawl or dogD to engage the ratchet l, and the fulcrum or pivot of said dog or pawlis by suitable means made ad justable to and from the ratchet a distanceat least equal to the base of each ratchettooth, whereby the fractionaladjustment (progressively) of the arm is accomplished,

The construction, or means of adjustment, preferred by me is shown inthe drawings, that is to say, the dog, which in the present instance isa spring-supported, split or slotted dog or pawl to engage the duplicateratchets 1 1, is pivoted on a sliding block 6, arranged to movelongitudinally of arm A in a slot 7, and is advanced or retracted byfeed-screws 8 and rotary nut 9; or, if preferred, the block 6 may befixed and the screw 8 made movable therethrough and the dog D be pivotedon the movable screw, either of which constructions will effect (on themicrometer principle) the progressive adjustment of the dog D.

The construction being of a general character hereinbefore specified,the arm A is secured to the upright O by applying the halfsleevesection-bearing 2 of clamp B to the upright on one side and screwingdown the nut 4 on threaded post 3 until the swiveled Washer 5 binds onthe opposite side of the up right, after which the arm may be set to anydesired angle by first manipulating the pawland-ratchet mechanism to getthe general angle, and thereafter causing the dog 1) to advance orrecede to secure special or limited adjustment within the width of theparticular ratchet-tooth base-line.

In order to employ two single bracket-arms to produce a doublebracket-arm, two arms are selected, and so applied to the upright G thatthe half-sleeve bearings are on opposite sides of the upright, afterwhich the respective thumb-nuts 4 at are turned down to force theswiveled washers 5 5 to bind on the respective sleeve sections orbearings 2 2 and clamp the whole to the upright O.

Having thus described the nature, operation, and the preferredconstruction of devices embodying my invention, what I claim, and desireto secure by Letter Patent, is

1. In abracket for display-fixtures, the combination with a pivoted arm,of a ratchet, a pivoted dog or pawl, and means for advancing andretracting said dog or pawl independently of said pivoted arm;substantially as and for the purposes specified.

2. In a bracket for display-fixtures,the combination with a pivotedarm,pawl-and-ratchet mechanism for the major adjustment of said arm, ofa screw mechanism for advancing or retracting the pawl to obtain theminor or final adjustment of said arm; substantially as and for thepurposes specified.

3. In abraeket-arm for display-fixtures the combination of a pivotedarm, a ratchet concentric with the pivot of the arm, a slidelongitudinally adjustable on the arm, and a pawl or dog mounted on saidadjustable slide, and arranged to engage the ratchet; substantially asand for the purposes specified.

4, In abracket-arm for display-fixtures, the combination with a pivotedarm, of a ratchet arranged around the pivot of the arm, a slideadjustably mounted on the arm, a screw to actuate and adjust said slide,and a dog or pawl mounted on the slide, and arranged to engage theratchet; substantially as and for the purposes specified.

In testimony whereof I my signature. in presence of two witnesses, this12th day 01 September, 1894.

BENJAMIN G. CASLER.

lVitnesses F. H. BILLMAN, F. W. BITTER, J r.

